From: Kostya Serebryany <kcc@google.com>
Date: Mon, 12 Dec 2011 18:01:46 +0000 (+0000)
Subject: [asan] use .preinit_array only on linux
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9b02741d2284d9516a59666c211fe1f57e8803ad;p=oota-llvm.git

[asan] use .preinit_array only on linux

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146379 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index fdea1b59466..f16bdf530c5 100644
--- a/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -567,7 +567,6 @@ bool AddressSanitizer::insertGlobalRedzones(Module &M) {
 
 // .preinit_array is something that hapens before all other inits.
 // On systems where .preinit_array is honored, we will call __asan_init early.
-// On other systems this will make no effect.
 void AddressSanitizer::appendToPreinitArray(Module &M, Function *F) {
   IRBuilder<> IRB(M.getContext());
   GlobalVariable *Var =
@@ -647,7 +646,9 @@ bool AddressSanitizer::runOnModule(Module &M) {
   }
 
   appendToGlobalCtors(M, AsanCtorFunction, 1 /*high priority*/);
-  appendToPreinitArray(M, AsanInitFunction);
+
+  if (M.getTargetTriple().find("linux") != std::string::npos)
+    appendToPreinitArray(M, AsanInitFunction);
 
   return Res;
 }